Geography

An estuary is a type of ecosystem found when a river flows into the ocean. Discover 10 of the world’s largest estuaries.

7 Major Cities That Sit Below Sea Level

Curiously, it’s possible for settlements to exist while technically being lower than the height of oceans and seas. Locations that sit below sea level can occur due to a variety of factors, including tectonic activity, rising water levels, and human developments such as land reclamation. Check out these seven major cities that are all situated below sea level.

Geography
6 Places That Could Soon Become U.S. States

On August 21, 1959, Hawaii became the 50th — and last — state admitted into the Union. But in the decades since, there has been talk of expanding the country even further. Here are some of the likeliest locations that could potentially become the 51st state.

Geography
7 of the World’s Newest Cities

The world’s oldest cities — the likes of Athens, Byblos, and Jericho — have been around for millennia. While these cities still stand proudly, the global landscape is changing rapidly. In response, several nations have built meticulously planned, high-tech cities that signal the future of urbanization. Discover seven of the world’s newest cities.

Geography
Which States Have the Highest and Lowest Elevations?

From the Rocky Mountains soaring high over Colorado to the lowland bayous of Louisiana, the average elevation of each state varies widely, reflecting America’s geographical diversity. Discover which states have the highest and lowest average elevations.

Geography